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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-12-27 19:18:00 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-12-31 14:13:23 +0200
commit79807d075ab8d1ca3574f5f52421e0047c1f1256 (patch)
treed94b099c4d69a1d1f1ad5c33d2ad533649c837ce /fs
parentc8f915913afdfe1a796e312e21658b8edcf20868 (diff)
UBIFS: fix constants initialization
The c->min_idx_lebs constant depends on c->old_idx_sz, which is read from the master node. This means that we have to initialize c->min_idx_lebs only after we have read the master node. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/ubifs/super.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index c3cefc84137..13097830e8b 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -602,7 +602,7 @@ static int bud_wbuf_callback(struct ubifs_info *c, int lnum, int free, int pad)
}
/*
- * init_constants_late - initialize UBIFS constants.
+ * init_constants_sb - initialize UBIFS constants.
* @c: UBIFS file-system description object
*
* This is a helper function which initializes various UBIFS constants after
@@ -610,7 +610,7 @@ static int bud_wbuf_callback(struct ubifs_info *c, int lnum, int free, int pad)
* makes sure they are all right. Returns zero in case of success and a
* negative error code in case of failure.
*/
-static int init_constants_late(struct ubifs_info *c)
+static int init_constants_sb(struct ubifs_info *c)
{
int tmp, err;
long long tmp64;
@@ -687,6 +687,21 @@ static int init_constants_late(struct ubifs_info *c)
if (err)
return err;
+ return 0;
+}
+
+/*
+ * init_constants_master - initialize UBIFS constants.
+ * @c: UBIFS file-system description object
+ *
+ * This is a helper function which initializes various UBIFS constants after
+ * the master node has been read. It also checks various UBIFS parameters and
+ * makes sure they are all right.
+ */
+static void init_constants_master(struct ubifs_info *c)
+{
+ long long tmp64;
+
c->min_idx_lebs = ubifs_calc_min_idx_lebs(c);
/*
@@ -702,8 +717,6 @@ static int init_constants_late(struct ubifs_info *c)
tmp64 *= (long long)c->leb_size - c->leb_overhead;
tmp64 = ubifs_reported_space(c, tmp64);
c->block_cnt = tmp64 >> UBIFS_BLOCK_SHIFT;
-
- return 0;
}
/**
@@ -1138,7 +1151,7 @@ static int mount_ubifs(struct ubifs_info *c)
goto out_free;
}
- err = init_constants_late(c);
+ err = init_constants_sb(c);
if (err)
goto out_free;
@@ -1172,6 +1185,8 @@ static int mount_ubifs(struct ubifs_info *c)
if (err)
goto out_master;
+ init_constants_master(c);
+
if ((c->mst_node->flags & cpu_to_le32(UBIFS_MST_DIRTY)) != 0) {
ubifs_msg("recovery needed");
c->need_recovery = 1;